Waterproof ventilator



June 22, 1937. c. M. HAMBLIN WATERPROOF VENTILATOR Filed Sept. 19, 1935 INVENTOR BY CLYDE M. HAMBLIN Evil;

4 ATTORNEY Patented June 22, 1937 2,084,338 WATERPROOF VENTILATQR Ql yde M. Hamblin, Washington, D. C. Appiication September 19, 1935, Serial N0.'41,226

' 18 Claims. (01. 9864i) (Granted under the act of March 3,1883, as

amended April 30, 1928; 370 O. G. 757) This invention relates to improvements in ventilators and more particularly to that type of ventilators used in ships for inducting fresh air into the holds or compartments.

It is a principal object ofthis invention to provide ventilators of the above character for use principally on ships, barges, boats and similar vessels, which are normally open to admit air but which embody automatically operating mechanism for preventing the entrance of water therethrough. i

A iurtherobject is to provide ventilators as above stated, adapted for navalfvessels, and which are equipped with means whereby they may be closed locally by power or by hand or at a distance as from the bridge, or elsewhere, to protect the crew against attack by poison gas, liquid fire and the like, as is used in warfare. I

Other objects reside in the various objects, of

construction and combination ofparts embodied in the invention and in their mode of operation. In accomplishing theseand otherobjects, there is provided the improved details of construction, the preferred forms of which are illustrated in the accompanying drawing, wherein Fig. 1 is a horizontal sectional-view of a ventilator embodying the present invention taken on line l V-l of Fig. 2. l V

. Fig. 2 is -a vertical sectional view through the ventilator.

: g. 3 is asectional view of amodified form of r the vacuum releasing valve. 7

Referring more in detail to. the several views of the drawing r l V There is shown at It] what may be the deck of a ship .or. boat into which extends a ventilator trunk H. The upper edge l2 of the ventilator trunk H is finished true to.cooperate with a gasket I3 on the underside of the rim Moi the funnel I5. Extending through sleeves 9 in funnel rim I 4 are a plurality of supporting and guide rods 116 whose lower ends are mounted on brackets l'l secured to the ventilator trunk ll, therods l6 being providedwith stops 8 limiting the upward movement of tunnel l5. Brackets 8, at the upper end of the guide rods l6 serve to support the ventilatorshell [9, the lower end of the shell I9 being mounted on annular shelf 20 extending from the outer'side of the ventilator trunk II. Scupper valves 2| are mounted over openings formed in the lower end of the ventilator shell l9 below the level of the edge l2 of the trunk ll thereby providing drainage means for water that maycollectin the trough between ,the lower end of the'ventilator shell l3 and the upper end of the ventilator trunk H. The scupper valves open outwardly and are mounted with their axes athwart-ship so as'not to swing open with the roll of the ship and are, therefore, tight against water pressure from the outside. 7 g ;1 g Supporting arms 22 extending upwardly from the ventilator shell l9 support the ventilator top or hood 23 in such a manner that all the air thatfl enters must enter below the outer annular edge.

2% of the top23 and travel over the upper edge 10 of the ventilator shell i9 and be deflected downwardly by the innerannular edge 25 provided in the ventilator top or hood 23, thecircumference of the inner annular edge 25 being substantially, less than the maximum inner circumference vof 15 the funnel I5. I i $1,. I 2

Ihe funnel I5 is suspended fromr'the brackets l8 by means of springs 23 and brackets 21, The lower end of the funnel l 5 is connected to a flexible conduit 28 leading into an aperture in the 20 side of the trunk ll above the deck Ill. The. springs 26 are so proportioned in strength that they will hold the funnel in the upper or'open ventilator position when water enters at a rate not faster than that at which it will run: out 25 through the flexible tunnel drain or conduit 28. Any greater weight ofwater will cause the fun nel springs 26 to extendthemselves, permitting the funnel l5 to drop downwardly untilthe gasket l3 contacts the edge l2 of the ventilator trunk ll thereby automatically sealing the ventilator against entrance of either liquids or air, whenever any great quantity ofwatershould be present in the ventilator. Counter weights may be substituted for springs 26 in an obvious manner; The 5 lower end of the funnel I5is provided with a yoke.-

29 formed at the upper end of a guide rod 30. This guide rod 30 extends through a bracket 3| andis' provided at its lower end with a pin 32 cooperating with a slot 33 in one end of a bell crank 34. The bell crank 34 is pivoted to a bracket 35 and has its other end pivoted at 36 'toa connecting rod 31 pinned to the inside of a flap valve 38ext'en'ding] through the side of the ventilator: trunk I l below deck 10. As funnel H5 closes against the ventilator trunk edge l2; the bell crank 34 auto-' matically opens the valve flap 38 thereby preventing the formation of a vacuum within theven tilator trunk l l andallowin'g the springs to auto- 50 matically re-open the ventilator as'soon as the 7 weight of water therein has been sufiiciently reduced to avoid danger of water entering through the ventilator.

' There is shown in' Fig. 3 a modified form of the 7V 7 ventilator valve flap 3B which opens inwardly into the ventilator 'trunk ll against a bow spring39 to act as a vacuum breaker within the ventilatortrunk whenever the ventilator is closed.

The means for manually closing the ventilator includes an externally extending sleeve 40 extending about the guide rod 30 and adapted to pass through the bracket 3|. A feather 5| on the guide rod3D cooperates with a cooperative groove inside the sleeve 40 preventing the sleeve 40 from rotating. An internally threaded pine ion 4| is operable by a beveled pinion 42 on 40 having a stop 45 which'cooperates'with a stop 46 on the'guide rod 30 thereby permitting the guide rod 30 to operate independently therethrough for automatically opening'and closing so long as the sleeve 40 is in apositiontopermit the ventilator to remain open, but when hand wheel 44 has been rotated to draw 'the sleeve 49 downwardly through the bracket 3|, then the stops 45 and 46 prevent the ventilator from automatically opening.

Obviously, power means may be connected to operating shaft 43 for closing the ventilator from a remote location, if desired. 7

While the preferred form of this invention has been-shown and set forth, it will be understood .tliat this invention is not limited to the particular detailed structure hereinbefore disclosed but that modifications and changes maybe made within the scope of what is hereinafter disclosed.

Thisinvention may be manufactured and used by or for the Government of the United States without the payment of royalty thereon.

' lg'A ventilator comprising a ventilator "trunk, an -annula'r shelf about said ventilator trunk spaced below'its upper edge, a ventilator shell of greater diameter than said ventilator trunk, the lower edge of said shell being supported on said shelf, a ventilator topsupported on said ventilator shell, a funnel yieldably supported in the mouth 'o'fjs'aid ventilator trunk, means for guiding said funnel into sealing position with said ventilator trunked'g'e and flexible drain means connecting to the'low'er end of said funnel and extending through said ventilator trunk."

2; A ventilator comprising a ventilator tube having a water collecting trough formed thereon by a flange and a ventilat'orsh'ell extending upwardly from said flange,.a ventilator hoodwsupported on said shell; afunnel yieldably supported a above .the inner edge of said trough and having means to cooperatively seal said funnel against said inner edge and a flexible drainage tube extending from the, lower end of said funnel to said trough permitting drainage therefrom,

guide means yoked to the lower end of said funnel, -a vacuum :flap valve extending through said ventilator tube, and means connected 1 0 thelower end of said guide means cooperating with said flap valve to open the same as the funnel descends toward sealing position.

4. A ventilator comprising a ventilator tube having'a water collecting trough formed thereon by a flange and a ventilator shell extending up wardly from said flange, a ventilator hood supported on said shell, a funnel yieldably supported above the inner edge of said trough and having means to cooperatively seal, said funnel-against said inner edge, a flexible drainage tube extend ing from the lower end ofssaid funnel through said ventilator tube, scuppervalve means secured to said trough permitting drainage therefrom, guide means yoked to the lower end of said funnel, and a vacuum flap valve extendingthrough said ventilator tube. V c

5. A ventilator comprising a ventilator tube having a Water collecting trough formed thereon by a flange and a ventilator shell extending upwardly from said flange,a ventilator hood supportedon said shell, a funnel yieldably supportedabove the inneredge of said trough and having means to cooperatively seal said funnel against said inner edge, a flexible drainage tube extending fromthe lower end of said-funnel through said ventilator tube, scupper valve means secured to said trough permitting drainage'therefrom,

guide means yoked to the lower end of said funnel,

and means cooperating with said guide means for positively drawing said funnel downwardly to ventilator sealing position, said last mentioned 7 means including an internally threaded pinion on said last mentioned means and a beveled pinion cooperating with said first mentioned pinion for controlling the same. V 6. A ventilator comprising a' ventilator tubehaving a water collectingtrough formed thereon by a flange and a ventilator shellextending'upwardly from said flange, supporting rods secured to the inner edge of said trough, bracket means securing the upperedg e of said shell to the upper end of said supporting rods, afunn'el, means for 'yieldably supporting said funnel above the edge of said trough, said funnel; havinglmeans for cooperativelysealing the same against the the upper end of said suDPOrting rods,a funnel, f I a means for yieldably supporting said funnel above the edge of said'trough, said funnel having neans g for cooperatively sealingjthe' same against the;

inner edgeJof-said trough, said funnel having means for cooperating with. said supporting rods guiding the vertical movement of said funnel, and,

drainage meansextending from the lower end of said funnel. r

8. A ventilator "comprising a ventilator tube having a water collecting trough formed thereon by a flange and aventilator shell extendi-ng up wardly from said flange, rods extending upward v ly from the inner edge of said trough tolsupport the upper edge of said ventilator shell, a funnel yieldably guided on said supporting rods having means for sealing said funnel against the inner edge of said trough, and drainage means extending from the vbottomof said funnel. r .9. -A- ventilator comprisin'g a. ventilator trunk, an annular shell secured adjacent the upper edge of said trunk, a ventilator shell having its lower upper edge of said trunk and bracketed to the upper edge of said shell, a ventilator hoodsupported from the upper edge of said shell, a drainage funnel yieldably and guidably supported above the edge of said ventilator trunk, drain-'- age means extending from said funnel through said trunk, said funnel having a plurality of Sleeves therethrough cooperating with said reinforcing rods whereby said rods act to guide the same in vertical movement, sealing means adapted to cooperate between said funnel andsaid trunk edge, and means for yieldably supporting the funnel comprising a plurality of springs which will permit the funnel to drop to scaling position whenever the weight of entrapped water is greater than its drainage capacity.

10. A ventilator comprising a ventilator trunk, an annular shelf secured adjacent: the upper edge of said trunk, a ventilator shell having its lower edge supported on said shelf thereby providing a water collecting trough, a plurality of shell reinforcing rods extending upwardly from the upper edge of said trunk andbracketed to the upper edge of said shell, a ventilator hood supported from the upper edge of said shell, a drainage funnel yieldably and guidably supported above the edge of said ventilator trunk, drainage means extending from said funnel through said trunk, said funnel having a plurality of sleeves therethrough cooperating with said reinforcing rods whereby said rods act to guide the same in vertical movement, sealing means adapted to cooperate between said funnel and said trunk edge, means for yieldably supporting the funnel comprising a plurality of springs which will permit the funnel to drop to sealing position whenever the weight of entrapped water is greater than its drainage capacity, additional guide means yoked to the lower end of said funnel, means cooperating with said additional guide means for positively drawing said funnel into ventilator sealing position, and a vacuum release valve extending through the side of said ventilator trunk.

11. A ventilator comprising a ventilator trunk, an annular shelf secured adjacent the upper edge of said trunk, a ventilator shell having its lower edge supported on said shelf thereby providing a water collecting trough, a plurality of shell reinforcing rods extending upwardly from the upper edge of said trunk and bracketed to the upper edge of said shell, a ventilator hood supported from the upper edge of said shell, a drainage funnel yieldably and guidably supported above the edge of said ventilator trunk, drainage means extending from said funnel through said trunk, said funnel having a plurality of sleeves therethrough cooperating with said reinforcing rods whereby said rods act to guide the same in vertical movement, sealing means adapted to cooperate between said funnel and said trunk edge, means for yieldably supporting the funnel comprising a plurality of springs which will permit the funnel to drop to scaling position whenever the weight of entrapped water is greater than its drainage capacity, additional guide means yoked to the lower end of said funnel, means cooperating with said additional guide means for positively drawing said funnel into ventilator sealing position, and a vacuum release valve extending through the side of said ventilator trunk,

the cooperative means between saidadditional guide means and said vacuum release'valve automatically opening said "vacuum release valvepias said funnel approaches sealing position. 12; A ventilator comprising a ventilator trunk; an annular shelf secured adjacent the upper edge of said trunk, a ventilator shell having its lower 7 edge supported on said shelf thereby providing a water collecting trough, a plurality of shell reinforcing rods extending upwardly from the upper edge of said trunk and bracketed'to the upper edge of said shell, a ventilator hood supported from the 'upper edge of said shell, a drainage funnel yieldably and guidably supported above the'edge of said ventilator trunk, drainage means extending from said funnel through said trunk, said funnel having a plurality of sleeves,

therethrough cooperating with said'reinforcing rods whereby said rods act to guide the same in vertical movement, sealing means adapted to cooperate between said funnel and said trunk edge, means'for yieldably supporting the funnel comprising a plurality of springs which will permit the funnel to' drop to sealing position whenever the weight ofentrapped water is greater than its 7 drainage capacity, additional guide means yoked to the lower end of said funnel, means cooperating with said additional guide means for positively drawing said funnel into ventilator sealing position, and a vacuum release valve extending through the side of said ventilator trunk, the

cooperative means between said additional guide 1 means and said vacuum release valve automatically opening said vacuumrelease valve as said funnel approaches sealing position, said cooperative means comprising a bell crank joined to said vacuum release valve and a pin and slot connection between said'bell crank and said yoked guide means.

13. A ventilator comprising a ventilator trunk, an annular shelf secured adjacent the upper edge of said trunk, a ventilator shell having its lower edge supported on said shelf thereby providing a water collecting trough, a plurality of shell reinforcing rods extending upwardly from the upper edge of said trunk and bracketed. to the upper edge of said shell, a ventilator hood supported from the upper edge of said shell, a drainage funnel yieldably and guidably supported above the edge of said ventilator trunk, drainage means extending from said funnel through said trunk, said funnel having a plurality of sleeves therethrough cooperating with said reinforcing rods whereby said rods act to guide the same in vertical movement, sealing means adapted to cooperate between said funnel and said trunk edge, and means for yieldably supporting the funnel comprising a plurality of springs which will permit the funnel to drop to scaling position whenever the Weight of entrapped water is greater than its drainage capacity, additional guide means yoked to the lower end of said funnel, means cooperating with said additional guide means for positively drawing said funnel into ventilator sealing position, said means for positively drawing said funnel downwardly comprising an externally threaded sleeve embracing said additional guide means, and an internally threaded gear on said sleeve and means for,ro-. tating said gear to draw said sleeve and embraced guide means downwardly.

14. A ventilator comprising a ventilator trunk,

water collecting trough, a plurality of shell reinforcing rods extending upwardly from the upper edge ofsaid trunk and bracketed to the upper edge of said, shell, a ventilator hood sup-- ported from the upper edge of said shell, a drainage funnel yieldably and guidably supported above the edge of said ventilator trunk, drain-. age means extending from said funnel through said trunk said funnel having a plurality of sleeves therethrough cooperating with said reinforcing rods whereby said-rodsact to guide the same in vertical movement, sealing means adapted to co- 7 f operate between said funnel and said trunk edge,

means for yieldably supporting the funnel coma through theside of said ventilator trunk, said means for positively drawing said" funnel downwardly comprising an externally threaded sleeve embracing said additional guide means, an internally threaded gear on said sleeve and means for rotating said gear to draw said sleeve and embraced guide means downwardly. 1

15. A ventilator comprising a ventilator trunk, an annular shelf about said ventilator trunk spacedbelow its upper edge,'a ventilator shell of greater" diameter than said ventilator, the lower edge of said shell being supported on said shelf, a ventilator top supported on said ventilator shell, a, receptacle yieldably supported in the mouth of said ventilator trunk, means for guiding :said receptacle into sealing position with said ventilator trunk edge, and drain meansconnectirig the bottom-of said receptacle and extending through said ventilator.

16. A ventilator comprising a ventilator tube having a water collecting trough formed thereon;

by a flange and a ventilator shell extending upwardly from said' fiange, aventilator hood supportedon said shell; a receptacle yieldably supported above the inner edge of said trough and having means to cooperatively seal said receptacle against said inner edge, and a drainage means extending from the bottom of said receptacle through said ventilator; i 17, A ventilator comprising a ventilator tube having a water collecting trough formed thereon by a flange and a ventilator shell extending upwardly from said flange, 1 supporting means secured to said ventilator tube, means bracing the upper edge of said shell tothe upper end of said supporting means, a receptacle, means for yieldably supporting said receptacle above the edge of said trough, said receptacle having means for cooperatively sealingfthe same againstthe inner edge of said trough, and drainage means extending from' the bottom of said receptacle. e 18. A ventilator comprisinga ventilatortube having a watercollecting trough formed there-,

on by a flange and a ventilator shell extending upwardly from the outer edge of said flange,

supporting means extending upwardlyfrom the inner edge of said ventilator tube to brace the upper edge of said ventilator shell,,a receptacle yieldably guided on said supporting means,1said, receptacle having means for sealing said receptacle against .the inner edge of said trough, and

drainage means extending from-the bottom of said receptacle.

CLYDE M. HAMBIl-IN. Y 

